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US3683153A Expired / Lapsed US ⏱️ 0.0 years remaining

Vaporizer with external heating element

Assignee: Middleby Marshall Inc
•
Filing: 1971-02-19
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Granted: 1972-08-08
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Expires: 1991-02-19
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Abstract

Abstract A vaporizer receiving and vaporizing condensate from refrigerating equipment including a condensate holding body, an electrical heating element positioned exteriorly of the body and heating the condensate contained within the body, said body having a bottom position groove which opens downwardly to receive the heating element in intimate contact therewithin and electrical controls to assure maximum vaporizing efficiency without overheating or other danger from electrical failure. The vaporizer also includes a tight fitting cover to comply with the requirements of the various sanitation regulatory bodies and an overflow tube extending through the body for condensate discharge in the event of overload.

Inventors

  • 👤 John A Heyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 19:44
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/14; F25D2321/00; F25D2321/14; F25D2321/141; F25D2321/1413; F25D2321/143

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 343 words
In a vaporizer for use in vaporizing condensate produced in externally positioned equipment, the combination of A. a body defining a condensate retaining reservoir, 1. said body having a bottom and side walls upwardly extending from the bottom to define the periphery of the said reservoir, 2. said body having a cover removably affixed over the side walls to enclose the reservoir, a. said cover being provided with a vent opening and a peripheral depending flange, said flange tightly fitting within the area defined by the said side walls, B. a shaped, open groove formed in said bottom, 1. said groove being defined by a shaped heating surface projecting upwardly into the said reservoir, 2. said groove opening exteriorly of the said body, 3. said groove being U-shaped in configuration and circular in cross sectional configuration, C. an electrical, shaped, heating element fitting within the said groove, 1. said heating element inserting into said groove exteriorly of the body, 2. the heating element intimately contacting the surface of the groove, 3. said heating element being circular in cross sectional configuration and substantially equal to the cross sectional diameter of the groove, 4. said heating element being in intimate contact with the groove through an arc of contact of substantially 180*; and D. a non-resilient heating element cover bottomly overfitting the said vaporizer bottom and sandwiching the heating element in the groove between the vaporizer body and the heating element cover, 1. said cover having an integral, U-shaped, upwardly projecting ridge, the said ridge continuously contacting the heating element throughout substantially its entire length, 2. said ridge pushing the heating element into intimate overall contact with the groove, 3. the heating element cover being in overall contact with the reservoir bottom to transfer heat thereto, 4. said heating element cover and said ridge being heated by the said heating element and forming a heat sink, a. the said heat sink retaining heat from the heating element and releasing the heat to the groove and to the reservoir bottom to aid in vaporizing the condensate.
Claim 2
Dependent Claim 343 words
In a vaporizer for use in vaporizing condensate produced in externally positioned equipment, the combination of A. a body defining a condensate retaining reservoir, 1. said body having a bottom and side walls upwardly extending from the bottom to define the periphery of the said reservoir, 2. said body having a cover removably affixed over the side walls to enclose the reservoir, a. said cover being provided with a vent opening and a peripheral depending flange, said flange tightly fitting within the area defined by the said side walls, B. a shaped, open groove formed in said bottom, 1. said groove being defined by a shaped heating surface projecting upwardly into the said reservoir, 2. said groove opening exteriorly of the said body, 3. said groove being U-shaped in configuration and circular in cross sectional configuration, C. an electrical, shaped, heating element fitting within the said groove, 1. said heating element inserting into said groove exteriorly of the body, 2. the heating element intimately contacting the surface of the groove, 3. said heating element being circular in cross sectional configuration and substantially equal to the cross sectional diameter of the groove, 4. said heating element being in intimate contact with the groove through an arc of contact of substantially 180*; and D. a non-resilient heating element cover bottomly overfitting the said vaporizer bottom and sandwiching the heating element in the groove between the vaporizer body and the heating element cover, 1. said cover having an integral, U-shaped, upwardly projecting ridge, the said ridge continuously contacting the heating element throughout substantially its entire length, 2. said ridge pushing the heating element into intimate overall contact with the groove, 3. the heating element cover being in overall contact with the reservoir bottom to transfer heat thereto, 4. said heating element cover and said ridge being heated by the said heating element and forming a heat sink, a. the said heat sink retaining heat from the heating element and releasing the heat to the groove and to the reservoir bottom to aid in vaporizing the condensate.
Claim 3
Dependent Claim 51 words
said body having a cover removably affixed over the side walls to enclose the reservoir, a. said cover being provided with a vent opening and a peripheral depending flange, said flange tightly fitting within the area defined by the said side walls, B. a shaped, open groove formed in said bottom,
Claim 4
Dependent Claim 51 words
said body having a cover removably affixed over the side walls to enclose the reservoir, a. said cover being provided with a vent opening and a peripheral depending flange, said flange tightly fitting within the area defined by the said side walls, B. a shaped, open groove formed in said bottom,
Claim 5
Dependent Claim 8 words
said groove opening exteriorly of the said body,
Claim 6
Dependent Claim 8 words
said groove opening exteriorly of the said body,
Claim 7
Dependent Claim 10 words
the heating element intimately contacting the surface of the groove,
Claim 8
Dependent Claim 10 words
the heating element intimately contacting the surface of the groove,
Claim 9
Dependent Claim 13 words
said ridge pushing the heating element into intimate overall contact with the groove,
Claim 10
Dependent Claim 13 words
said ridge pushing the heating element into intimate overall contact with the groove,
Claim 11
Dependent Claim 18 words
The invention of claim 1 wherein one of the said sides is provided with a condensate inlet opening.
Claim 12
Dependent Claim 18 words
The invention of claim 2 wherein one of the said sides is provided with a condensate overflow opening.
Claim 13
Dependent Claim 16 words
the heating element cover being in overall contact with the reservoir bottom to transfer heat thereto,
Claim 14
Dependent Claim 16 words
the heating element cover being in overall contact with the reservoir bottom to transfer heat thereto,
Claim 15
Dependent Claim 20 words
said heating element being circular in cross sectional configuration and substantially equal to the cross sectional diameter of the groove,
Claim 16
Dependent Claim 20 words
said heating element being circular in cross sectional configuration and substantially equal to the cross sectional diameter of the groove,
Claim 17
Dependent Claim 23 words
said groove being U-shaped in configuration and circular in cross sectional configuration, C. an electrical, shaped, heating element fitting within the said groove,
Claim 18
Dependent Claim 23 words
said groove being U-shaped in configuration and circular in cross sectional configuration, C. an electrical, shaped, heating element fitting within the said groove,
Claim 19
Dependent Claim 48 words
said heating element being in intimate contact with the groove through an arc of contact of substantially 180*; and D. a non-resilient heating element cover bottomly overfitting the said vaporizer bottom and sandwiching the heating element in the groove between the vaporizer body and the heating element cover,
Claim 20
Dependent Claim 48 words
said heating element being in intimate contact with the groove through an arc of contact of substantially 180*; and D. a non-resilient heating element cover bottomly overfitting the said vaporizer bottom and sandwiching the heating element in the groove between the vaporizer body and the heating element cover,
Claim 21
Dependent Claim 48 words
said heating element cover and said ridge being heated by the said heating element and forming a heat sink, a. the said heat sink retaining heat from the heating element and releasing the heat to the groove and to the reservoir bottom to aid in vaporizing the condensate.
Claim 22
Dependent Claim 48 words
said heating element cover and said ridge being heated by the said heating element and forming a heat sink, a. the said heat sink retaining heat from the heating element and releasing the heat to the groove and to the reservoir bottom to aid in vaporizing the condensate.

References Cited (Backward Citations)

US1063614A Cited
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US1697157A Cited
US2692937A Cited
US2690709A Cited
US2843720A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-08 1976-02-07 1976-08-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-08 1980-02-07 1980-08-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-08 1984-02-07 1984-08-08 $7700.00 Window Closed / Lapsed

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